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首页> 美国卫生研究院文献>Avicenna Journal of Phytomedicine >Evaluation of antioxidant activity of three common potato (Solanum tuberosum) cultivars in Iran
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Evaluation of antioxidant activity of three common potato (Solanum tuberosum) cultivars in Iran

机译：伊朗三种常见马铃薯（Solanum tuberosum）品种的抗氧化活性评估

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>Objectives: Potato (Solanum tuberosum L.), as a whole food, contains high levels of vitamins and important antioxidants including phenolic acids, carotenoids and flavonoids. The objective of this study was to determine the total phenolic content and antioxidant activities of three common potatoes (Solanum tuberosum) cultivars in Iran i.e., Savalan, Agria and Sante. >Materials and Methods: Phenolic compound extraction of samples was done with methanol and total phenolic on the basis of folin-ciocalteu assay was estimated as 16.58 to 36.24 mg GAE/100g dry sample. The antioxidant activities of potato extracts on the basis of inhibition of linoleic acid peroxidation and DPPH assay were compared with a commercially available antioxidant, α -tocopherol. >Results: Savalan had the highest phenolic content and the highest DPPH radical scavenging activity with EC50 value of 41.815±mg/ml (DB). Also Savalan had the best inhibitory action against linoleic acid oxidation at 94.10±1.89% at 50 mg/ml sample concentration. Methanolic potato extracts had better antioxidant activity than α-tocopherol. Significant (p<0.01) negative correlation was observed between total phenolic content and the EC50 for DPPH radical scavenging activity(R=-0.877), but there was no correlation between total phenolic content and total antioxidant activity. >Conclusion: Metanolic extracts of three potato cultivars are able to inhibit the oxidation process. The correlation between total phenolic content and DPPH radical scavenging activity indicates that phenolic compounds are responsible for antiradical activity.
机译：>目标：马铃薯（茄子）作为一种整体食品，含有高水平的维生素和重要的抗氧化剂，包括酚酸，类胡萝卜素和类黄酮。这项研究的目的是确定伊朗的三种常见马铃薯（Solanum tuberosum）品种的总酚含量和抗氧化活性，即Savalan，Agria和Sante。 >材料和方法：样品用甲醇萃取酚类化合物，根据folin-ciocalteu分析，总酚估计为16.58至36.24 mg GAE / 100g干样品。将马铃薯提取物基于亚油酸过氧化抑制和DPPH测定的抗氧化活性与市售抗氧化剂α-生育酚进行了比较。 >结果：萨瓦兰具有最高的酚含量和最高的DPPH自由基清除活性，EC50值为41.815±mg / ml（DB）。在浓度为50 mg / ml的情况下，Savalan对亚油酸氧化的抑制作用最佳，为94.10±1.89％。甲醇马铃薯提取物的抗氧化活性优于α-生育酚。总酚含量与EC50的DPPH自由基清除活性之间存在显着（p <0.01）负相关（R = -0.877），但总酚含量与总抗氧化剂活性之间没有相关性。 >结论：三个马铃薯品种的Metanolic提取物能够抑制氧化过程。总酚含量与DPPH自由基清除活性之间的相关性表明，酚类化合物负责抗自由基活性。

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